TY  - GEN
AU  - Kommedahl, Thor (ed.)
AU  - Williams, Paul H. (ed.)
TI  - Challenging problems in plant health
SN  - 0890540578
PY  - 1983///
CY  - St. Paul, Minn.
PB  - American Phytopathological Society, 
KW  - Plant diseases
KW  - Plants, Protection of
KW  - Plant health
ER  -